ListUsers.ps1
|
function Get-LogonSession { [CmdletBinding()] param( [Parameter(ValueFromPipeline=$true)] [String[]]$ComputerName = 'localhost') Process { $server = [PoshInternals.Wtsapi32]::WTSOpenServer($ComputerName ) if ($server -eq [IntPtr]::Zero) { throw new-Object System.ComponentModel.Win32Exception } $SessionInfoPtr = [IntPtr]::Zero $sessionCount = 0 $retVal = [PoshInternals.Wtsapi32]::WTSEnumerateSessions($server, 0, 1, [ref] $SessionInfoPtr, [ref] $sessionCount) if ($retVal) { $dataSize = Get-Size -Type ([PoshInternals.WTS_SESSION_INFO]) $currentSession = [long]$SessionInfoPtr $bytes = 0 for ($i = 0; $i -lt $sessionCount; $i++) { $si = ConvertTo-Object ([System.IntPtr]$currentSession) ([PoshInternals.WTS_SESSION_INFO]) $currentSession += $dataSize; $userPtr = [IntPtr]::Zero $domainPtr = [IntPtr]::Zero if (! [PoshInternals.Wtsapi32]::WTSQuerySessionInformation($server, $si.SessionID, [PoshInternals.WTS_INFO_CLASS]::WTSUserName, [ref] $userPtr, [ref] $bytes) ) { throw new-Object System.ComponentModel.Win32Exception } if (! [PoshInternals.Wtsapi32]::WTSQuerySessionInformation($server, $si.SessionID, [PoshInternals.WTS_INFO_CLASS]::WTSDomainName, [ref] $domainPtr, [ref] $bytes)) { throw new-Object System.ComponentModel.Win32Exception } [PSCustomObject]@{ Domain = (ConvertTo-String $domainPtr -Ansi); UserName = (ConvertTo-String $userPtr -Ansi); } [PoshInternals.Wtsapi32]::WTSFreeMemory($userPtr) | Out-Null [PoshInternals.Wtsapi32]::WTSFreeMemory($domainPtr) | Out-Null } [PoshInternals.Wtsapi32]::WTSFreeMemory($SessionInfoPtr) | Out-Null [PoshInternals.Wtsapi32]::WTSCloseServer($Server) | Out-Null } else { throw new-Object System.ComponentModel.Win32Exception } } } |